import { watch, unref } from "vue";
import { useI18n } from "@/hooks/web/useI18n";
import { useTitle as usePageTitle } from "@vueuse/core";
import { useGlobSetting } from "@/hooks/setting";
import { useRouter } from "vue-router";
import { useLocaleStore } from "@/store/modules/locale";
import { REDIRECT_NAME } from "@/router/constant";

/**
 * Listening to page changes and dynamically changing site titles
 */
export function useTitle() {
  const { title } = useGlobSetting();
  const { t } = useI18n();
  const { currentRoute } = useRouter();
  const localeStore = useLocaleStore();

  const pageTitle = usePageTitle();

  watch(
    [() => currentRoute.value.path, () => localeStore.getLocale],
    () => {
      const route = unref(currentRoute);

      if (route.name === REDIRECT_NAME) {
        return;
      }

      const tTitle = t(route?.meta?.title as string);
      pageTitle.value = tTitle ? ` ${tTitle} - ${title} ` : `${title}`;
    },
    { immediate: true },
  );
}
